Model Configuration
Nexu supports two model integration paths: Nexu Official (managed models, sign in and go) and BYOK (Bring Your Own Key). You can switch between them at any time without affecting existing conversations or channel connections.
Step 1: Open Settings
Click Settings in the left sidebar of the nexu client to open the AI Model Providers configuration page.
Step 2: Choose an Integration Mode
Option A: Nexu Official
Select Nexu Official from the provider list on the left, then click Sign in to Nexu to authenticate.
Once signed in, no API key is needed. Managed models become available immediately.
Option B: Bring Your Own Key
Select Anthropic, OpenAI, Google AI, or another provider from the list:
- Paste your key into the API Key field.
- Modify API Proxy URL if you need a custom proxy.
- Click Save. nexu will verify the key and load the available model list automatically.
Step 3: Select the Active Model
After a successful connection, use the Nexu Bot Model dropdown at the top of the Settings page to choose the model your Agent should use.
Supported Providers
| Provider | Default Base URL | Key Format |
|---|---|---|
| Anthropic | https://api.anthropic.com | sk-ant-... |
| OpenAI | https://api.openai.com/v1 | sk-... |
| Google AI | https://generativelanguage.googleapis.com/v1beta | AIza... |
| xAI | https://api.x.ai/v1 | xai-... |
| Custom | Your OpenAI-compatible endpoint | Depends on the provider |
Best Practices
- Use least-privilege API keys whenever possible.
- Never expose keys in screenshots, tickets, or git history.
- When adding a BYOK provider, verify connectivity before saving.
- Use Custom if you need a proxy, self-hosted gateway, or another OpenAI-compatible inference service.
FAQ
Q: Which mode should I start with?
Nexu Official is the easiest place to start: just sign in and begin using managed models.
Q: Can I configure multiple BYOK providers at the same time?
Yes. Providers can be configured independently, and you can switch between them through the model selector.
Q: Are API keys uploaded to nexu servers?
No. API keys are stored on your local device and are not uploaded to nexu servers.